© Semiconductor Components Industries, LLC, 2015
June, 2018 − Rev. 26
1 Publication Order Number:
CAT25010/D
CAT25010, CAT25020,
CAT25040
EEPROM Serial 1/2/4-Kb SPI
Description
The CAT25010/20/40 are a EEPROM Serial 1/2/4−Kb SPI devices
internally organized as 128x8/256x8/512x8 bits. They feature a
16−byte page write buffer and support the Serial Peripheral Interface
(SPI) protocol. The device is enabled through a Chip Select (CS
)
input. In addition, the required bus signals are a clock input (SCK),
data input (SI) and data output (SO) lines. The HOLD
input may be
used to pause any serial communication with the CAT25010/20/40
device. These devices feature software and hardware write protection,
including partial as well as full array protection.
Features
• 20 MHz (5 V) SPI Compatible
• 1.8 V to 5.5 V Supply Voltage Range
• SPI Modes (0,0) & (1,1)
• 16−byte Page Write Buffer
• Self−timed Write Cycle
• Hardware and Software Protection
• Block Write Protection
− Protect 1/4, 1/2 or Entire EEPROM Array
• Low Power CMOS Technology
• 1,000,000 Program/Erase Cycles
• 100 Year Data Retention
• Industrial and Extended Temperature Range
• PDIP, SOIC, TSSOP 8−Lead and UDFN 8−Pad Packages
• These Devices are Pb−Free, Halogen Free/BFR Free, and RoHS
Compliant
SI
SO
CAT25010
CAT25020
CAT25040
SCK
V
SS
V
CC
CS
WP
HOLD
Figure 1. Functional Symbol
www.onsemi.com
PIN CONFIGURATION
SI
HOLD
V
CC
V
SS
WP
SO
CS
1
See detailed ordering and shipping information in the package
dimensions section on page 10 of this data sheet.
ORDERING INFORMATION
SOIC−8
V SUFFIX
CASE 751BD
SCK
SOIC (V), TSSOP (Y), UDFN (HU4)
TSSOP−8
Y SUFFIX
CASE 948AL
Chip SelectCS
Serial Data OutputSO
Write ProtectWP
GroundV
SS
Serial Data InputSI
Serial ClockSCK
FunctionPin Name
PIN FUNCTION
Hold Transmission InputHOLD
Power SupplyV
CC
UDFN−8
HU4 SUFFIX
CASE 517AZ
For the location of Pin 1, please consult the
corresponding package drawing.